Monkeying around with the worldly designerIt’s may not be her official motto, but Melissa Joy ­Manning thinks globally and acts locally. She studied design at the University of Barcelona and silversmithing at the Instituto Allende in Mexico. Her inspiration is all over the map: “The talismans of Mongolia and Tibet end up in my work a lot,” she says. “I also love anything from Papua New Guinea. And I have a personal collection of chieftain necklaces from the Philippines.” Yet the New York City–based designer, who operates a flagship in Berkeley, Calif., buys all her materials from domestic suppliers. So what is Manning’s motto? Sustainability and social responsibility. Plus extra-dirty martinis.Monkey the terrorAge: 40Number of years in the biz: 17Number of employees you oversee: 6Family/pets: Crazy Boston “Terror” called Monkey. He’s great for relieving stress; anyti